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Finding the Fourth Proportional to 448,165.15, 618,415.76 and 273,647.57

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Solution

The fourth proportional to 448,165.15, 618,415.76 and 273,647.57 is: 377,601.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,165.15 : 618,415.76 = 273,647.57 : x
  2. Step 2: Convert to fraction form
    448,165.15/618,415.76 = 273,647.57/x
  3. Step 3: Cross multiply
    448,165.15x = 618,415.76 × 273,647.57
  4. Step 4: Simplify right side
    448,165.15x = 169,227,967,565.74
  5. Step 5: Solve for x
    x = 169,227,967,565.74/448,165.15
  6. Step 6: Final answer
    x = 377,601.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.